I need some help from specialists in Russian coinage. The first person that comes to mind is @Siberian Man but I'm sure there are others on here. The attached photos are of a coin that I have on the way back from being graded by NGC. I know the photos aren't great. They are just screenshots off of NGC's website. I didn't take any photos before I shipped it. The reseasons why I got it graded are irrelevant to probably anyone other than me, but if you really want to know I can share. Anyway, NGC tagged it as a 1763MM. To my eyes, it appears to be 1767/6MM overdate. Now, that overdate doesn't show as a known overdate in any of the literature I have. To me, it does not look like a 3 but I don't have another one to compare it to. What I was hoping is that someone could post a photo of a 1763MM so I could compare the digits. Even better, hopefully, someone has proof of a 7/6 published somewhere.
The Yekaterinburg mint re-minted dates on coins from 1763, 1764, and 1765. 10% of coins issued in 1763, 5% of coins issued in 1764, and 0.5% of coins issued in 1765 were re-minted.
It's a terrible image but Brekke 195 - I think the 3 is pretty similar. A little die break could complete the loop.
I actually found a similar 1763EM from the link provided by @muhfff but was hoping to find an image of a 1763MM to compare. @mrbadexample I don't think the one in your image has a mint mark. That said, the 1763EM I found did have a very similar 3 in the date. I don't know much about the minting process in Russia at this time. Does anyone know if all of the dies were made at one centralized location and then distributed. If that is the case then I don't need to look any further. My assumption was that the individual mints applied the dates and mint marks but I could be way off base.
1767 MM 5 kopek is less common compared to the other years and is distinctly different. The m-dv site does have all the images you need if you looked harder. https://www.m-dv.ru/en/monety-rossii-1700-1917/kid,14/mid,4/nid,34/types.html If you think of the logistical challenges of transporting dies - look at how big the country is! All mints do have some variations in their design. This is clearly a Moscow design. There are exceptions. Sestroretsk mint did have some dies from St Petersburg, which I believe is half hour drive. In fact some dies mintmarks were reengraved which is less common.
